I have had one of these 1 man for a couple of yrs now and its perfect in all conditions easy to put up and down and not to heavy you can pick them up for around £185 to £225 if you shop about i got mine for £160 new from ebay withh all the trimmings

Trakker SLX 1 or 2 Man Bivvy And Wrap

'All In one And One For All'This bivvy is truly an 'all round package'.

From using as an open front bivvy, zip in the full mozzy front, zip in the full front panel & and finally shroud it in the full cover wrap.